Hey ,
Really appreciate the help, I’ve followed your instructions but I’m still getting errors.
I’ve reinstalled Windows SDK and Visual Studios 2015 along with opening up the project with Unreal 4.12.5 but I still get the error below
Any ideas?
Thanks in advance 
The project could not be compiled. Would you like to open it in Visual Studio?
Running D:/Epic Games/4.12/Engine/Binaries/DotNET/UnrealBuildTool.exe ShooterArena Development Win64 -project=“D:/UnrealProjects/BMUD_Source_12-06-2016 4.12 - 4/ShooterArena.uproject” -editorrecompile -progress -noubtmakefiles -NoHotReloadFromIDE
@progress push 5%
Parsing headers for ShooterArenaEditor
Running UnrealHeaderTool “D:\UnrealProjects\BMUD_Source_12-06-2016 4.12 - 4\ShooterArena.uproject” “D:\UnrealProjects\BMUD_Source_12-06-2016 4.12 - 4\Intermediate\Build\Win64\ShooterArenaEditor\Development\ShooterArenaEditor.uhtmanifest” -LogCmds=“loginit warning, logexit warning, logdatabase error” -Unattended -WarningsAsErrors -installed
Reflection code generated for ShooterArenaEditor in 3.5262222 seconds
@progress pop
Performing 7 actions (4 in parallel)
[2/7] Resource ModuleVersionResource.rc.inl
[3/7] Resource ShooterArena.rc
PCH.ShooterArena.h.cpp
D:\UnrealProjects\BMUD_Source_12-06-2016 4.12 - 4\Source\ShooterArena\Resources\Windows\ShooterArena.rc(68) : error RC2135 : file not found: …/…/…/…/Build/Windows/Application.ico
MyBlueprintFunctionLibrary.cpp
ShooterArena.generated.cpp
ShooterArena.cpp
ERROR: UBT ERROR: Failed to produce item: D:\UnrealProjects\BMUD_Source_12-06-2016 4.12 - 4\Binaries\Win64\UE4Editor-ShooterArena.dll
Total build time: 38.25 seconds